Cosworth TGV Delete Kit for Subaru Impreza WRX STI 2007-2011

The Cosworth Tumble Generating Valve (TGV) Delete is designed to maximize airflow to your engine by eliminating obstructions inherent to OEM intake ports. TGV deletes made of a fiber reinforced polymer to insulate cylinder head from intake tract; providing your engine with a cooler; denser charge of air. To further increase performance; Cosworth deletes port matched to CNC cylinder heads intake manifold. This product is a direct for 07+ Subaru due to top feed injector design due to a revision to upper bolt pattern of TGV; specifically moving center M6 holes. With manifold top feed injectors; TGV delete will work without issue on most WRX/STI applications.